DISSERTATION
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________________________________________________________________ Experimental Work<br />
As a result of the measurement, modulus and phase are sampled and the impedance is presented<br />
usually in a Nyquist plot, since it provides fast information about system parameters, or<br />
alternatively in a Bode plot when the frequency dependence needs to be investigated (Figure<br />
5.7).<br />
Figure 5.7. Representation of EIS data: a) Nyquist plot, b) Bode plot.<br />
Figure 5.8. Current vs. potential dependence in electrochemical systems. A region<br />
exhibiting quasi-linear behavior is shown.<br />
For reliable data acquisition, two conditions need to be satisfied. Ideally, during EIS<br />
measurements, the system should remain stationary, that is, the system parameters should not<br />
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